I was looking at a Alba Action CDI box for under a $100, that says it increases the RPM's by 1000.
How much more speed will 1000 RPM's give me. Acceleration, Top Speed, or Both.

 

When I put one on my Predator it went from 76.1 mph top speed to 81.7mph top speed. It also ran 8.99 in the 1/8 th before and 8.92 after. Don't look for it to be any quicker but 1000 more rpms should give you 5 to 6 more mph on top end.

 

Which brand or type did you get? Thanks for the help.